Re: soap.serverserver was unable to process request detected use of a workflow constant

you have an action labeled 'Initiator' within workflow.

the action uses workflow constant named 'LDAPUser'.

the constant either doesn't exist on the site (collection) where you're publishing the workflow from, or an user account that publishes workflow doesn't have sufficient permissions to read the constant value.

Re: soap.serverserver was unable to process request detected use of a workflow constant

I have upgraded workflow from SharePoint 2010 to SharePoint 2013. I have checked from database workflowconstant has entry 'LDAPUser' but when i checked workflow constant under site settings it does not show that. i am performing these steps using spfarmadmin.